Yea.. You can't be near 40 with all that weight on you. Can't be good for your health. Plus, you'd have to eat a lot to maintain a 350lb physique. I doubt losing weight is all that hard.

Yeah I don't think most people understand that O-Lineman are forced to be 300+ , these aren't just fat guys. They're athletes, its no surprise when they no longer need to be so heavy and strong that they cut a lot of weight.
Of course you also get the guys that are used to eating so much, but stop being active